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feat(windsteer): move the current readout to the bottom-right corner - #640

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feat/windsteer-current-corner
Sep 23, 2026
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mairas merged 7 commits into
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feat/windsteer-current-corner

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@mairas

@mairas mairas commented Sep 23, 2026

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Summary

The Windsteer dial center is needed for the planned polar and VMC overlay (halos-org/skip#635), so the current readout moves out of it. The drift label, value and unit now sit in the bottom-right corner, in the same column as the TWS readout in the top-right. A large, faint set arrow sits behind the value. Only the boat outline stays at the center.

The drift value also stops blinking. The old rule hid the whole readout below 0.1 m/s. The drift estimate on a test device dipped below that 6 times in 5 minutes (minimum 0.03 m/s), and each dip blanked the corner. The value is information at any magnitude; only the set direction becomes noise near zero.

Closes #637

Changes

  • Corner readout: the DRIFT label, value and unit mirror the #twsCounter column. They show whenever drift is fresh, drift display is enabled and the widget is in compass mode, at any magnitude including 0.0.
  • Set arrow: 158 units long, pivoting at (904, 912) on the value's visual center and drawn behind the text. It is the drift colour at 40 % fill opacity, and the text gets a thin halo in the card background colour, so the value reads over it in the light, dark and night themes. At every rotation angle the arrow stays at least 7.5 units clear of the dial and rudder ring and 8 units inside the tile. It rotates in place by set − heading with the same animateRotation as before, so it keeps the heading-up direction.
  • Arrow threshold with hysteresis: the arrow appears at drift ≥ 0.1 m/s and hides only below 0.05 m/s (SET_ARROW_SHOW_MS, SET_ARROW_HIDE_MS). The check runs on every raw sample, so an estimate that hovers near the threshold does not make the arrow blink. The arrow still also needs a fresh set, drift display enabled and compass mode.
  • driftActive is replaced by the arrow-only setArrowActive. The gradient defs that only the old arrow used are removed.
  • Probe: perf-harness/shot-windsteer.mjs renders a fixed Windsteer scene against the mock server in any theme and tile size. It takes --drift (knots) and --set-rel (degrees from the bow). perf-harness/lib/skip-config.mjs gains a Windsteer widget factory and an optional theme; the README documents the probe.

Verification

  • npm test passes (2201 tests); npm run lint and npm run snc are clean. The specs cover:
    • the readout at a fresh drift of 0 and 0.04 m/s;
    • the hysteresis sequence 0.12 → 0.07 → 0.04 → 0.07 → 0.11 m/s (shown, shown, hidden, hidden, shown), with drift in knots and in m/s;
    • stale drift and stale set;
    • the pivot, the animated rotation, and the wraps across north;
    • a geometry check that rotates every arrow vertex in 5° steps against the dial and the tile edge.
  • Renders in the light, dark and night themes at about 890 px and 215 px tiles, for 0.8 kn, 12.5 kn and 0.03 m/s, with the set at 45° and 180° and the rudder hard over. At 0.03 m/s the value shows with no arrow.
  • Deployed to a HaLOS test device with live drift data and checked visually.

At diagonal sets the text covers the middle of the arrow, so only its head and tail ends show; on the device this read correctly.


🤖 Generated with Claude Code

The Windsteer widget shows the drift value and unit in the dial’s bottom-right corner, leaving the center clear for overlays. When drift data is fresh, the readout remains visible, including at zero drift. The set arrow appears at or above 0.1 m/s and stays visible until drift falls below 0.05 m/s. It rotates in place by set minus heading.

A new screenshot probe renders the widget at two tile sizes across light, dark, and night themes. It supports configurable drift magnitude and relative set angle.

@mairas

mairas commented Sep 23, 2026

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Code review

CodeRabbit had not reviewed this PR 44 minutes after it opened, so this multi-persona review replaces it.

Scope: feat/windsteer-current-corner against main (6 files). Intent: move the Windsteer drift readout and set arrow from the dial center to the bottom-right corner, with the visibility rules unchanged. Plan: #635, Unit 2.

Reviewers: correctness, testing, maintainability, project-standards, and adversarial (about 130 changed non-test lines).

The correctness reviewer found no defects. All six findings are P2 or P3.

P2 – Moderate

# File Issue Reviewer Confidence Route
1 svg-windsteer.component.spec.ts:262 The animated set-arrow update is checked only for its final angle. If the SET_ARROW_CENTER argument to animateRotation were dropped, the arrow would orbit the dial center after its first update, and every spec would still pass. The spec should also assert the pivot (816, 952) and that animation frames were queued. testing 0.85 safe_auto

P3 – Low

# File Issue Reviewer Confidence Route
2 svg-windsteer.component.ts:112 A drift value of four or more characters (10.0 and up) comes within 1–3 viewBox units of the arrow tip when the set is 50–55° to starboard; 100.0 and up overlaps. Measured against the bundled Roboto face. Two-digit values occur in km/h. Suggested fix: move SET_ARROW_CENTER about 10 units left (for example 806, 952), then render 12.5 kn at relative sets of 45° and 55°. adversarial, correctness 0.75 manual
3 perf-harness/README.md:114 shot-windsteer.mjs has no README entry, unlike every other shot-*.mjs probe. The README's claim that shot-fuel-rate is the only probe driving control.selfMeta is now false. project-standards, maintainability 0.85 safe_auto
4 svg-windsteer.component.spec.ts:379 The comment "no longer rides the rotating dial" describes the change, not the current design. project-standards 0.65 safe_auto
5 svg-windsteer.component.spec.ts:386-392 The dial center (500) and corner bound (750) are bare numbers next to a named DIAL_OUTER_RADIUS. project-standards 0.60 safe_auto

Pre-existing

# File Issue Reviewer Confidence Action
6 svg-windsteer.component.ts:294 With the Magnetic heading path, the set arrow is off by the magnetic variation, because set always comes from environment.current.setTrue. The old dial-mounted arrow had the same error. adversarial 0.70 file-issue: same cause as #634, which will be extended to cover set

Testing gaps

  • No case with set less than heading, for example set 030 at heading 300, which exercises the negative wrap in addHeading(set, -heading).
  • No case for a heading crossing north with a fixed set.
  • The stale-drift spec sets setFresh: true but does not assert what the arrow does.

Residual risk

With stale drift and a fresh set, the label, value and unit hide, but the arrow stays, unchanged from the old rule. In the corner, that arrow has no label next to it. Whether to change this is a product decision; it is not part of this PR's intent.


Verdict: ready with fixes. Order: 1, 3, 4, 5 and the testing gaps as one test and docs commit, then 2 with a re-render. Finding 6 goes to the issue.

🤖 Generated with Claude Code

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Reviewing files that changed from the base of the PR and between 4a4138d and 6946f50.

⛔ Files ignored due to path filters (1)
  • src/app/widgets/svg-windsteer/svg-windsteer.component.svg is excluded by !**/*.svg
📒 Files selected for processing (9)
  • perf-harness/README.md
  • perf-harness/lib/skip-config.mjs
  • perf-harness/shot-windsteer.mjs
  • src/app/widgets/svg-windsteer/svg-windsteer.component.scss
  • src/app/widgets/svg-windsteer/svg-windsteer.component.spec.ts
  • src/app/widgets/svg-windsteer/svg-windsteer.component.ts
  • src/app/widgets/widget-windsteer/widget-windsteer.component.html
  • src/app/widgets/widget-windsteer/widget-windsteer.component.spec.ts
  • src/app/widgets/widget-windsteer/widget-windsteer.component.ts
📝 Walkthrough

Walkthrough

The Windsteer widget keeps the current readout visible independently of the set arrow. The arrow uses hysteresis and rotates relative to the compass heading. A new Playwright probe captures the widget at two tile sizes across light, dark, and night themes.

Changes

Windsteer current readout

Layer / File(s) Summary
Set-arrow visibility and widget binding
src/app/widgets/widget-windsteer/widget-windsteer.component.ts, src/app/widgets/widget-windsteer/widget-windsteer.component.html, src/app/widgets/widget-windsteer/widget-windsteer.component.spec.ts
Set-arrow visibility now activates at 0.1 m/s and deactivates below 0.05 m/s, retaining its prior state between those thresholds. The drift readout remains visible at any magnitude, including zero.
Corner readout and set-arrow rendering
src/app/widgets/svg-windsteer/svg-windsteer.component.ts, src/app/widgets/svg-windsteer/svg-windsteer.component.scss, src/app/widgets/svg-windsteer/svg-windsteer.component.spec.ts
The set arrow rotates by the difference between its set direction and the rounded compass heading, around a bottom-right corner pivot. Styles and tests cover the readout, arrow visibility, rotation, animation, and corner placement.
Screenshot probe and configuration
perf-harness/lib/skip-config.mjs, perf-harness/shot-windsteer.mjs, perf-harness/README.md
A new probe streams a fixed boat state and captures the widget at 24-cell and 6-cell sizes across three themes. The README documents its options and visual checks. serverConfigDocument accepts a theme name.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Merge Risk: 🔵 Low · up to 4a413

Moving the Windsteer drift readout and set arrow to the bottom-right corner, and adding set-arrow hysteresis, showed no user-facing defects. The remaining issue affects only the developer screenshot script. A mistyped --drift or --set-rel flag can silently produce misleading screenshots. The change is mergeable; validating those flags is a small follow-up.

🚥 Pre-merge checks | ✅ 2 | ❌ 2

❌ Failed checks (2 warnings)

Check name Status Explanation Resolution
Linked Issues check ⚠️ Warning Issue #637 requires the existing visibility rules to remain unchanged. The trigger is drift below the previous 0.1 m/s limit. The code path is WidgetWindComponent and `widget-windsteer.component.htm… Preserve the #637 visibility behavior for the drift readout, or update the directly linked issue to explicitly approve the changed low-drift behavior. Add or retain tests that cover the required enabled, fresh-data, compass-mode, and thresh…
Docstring Coverage ⚠️ Warning Docstring coverage is 75.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 6 files. (3 skipped: 3… Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (2 passed)
Check name Status Explanation
Out of Scope Changes check ✅ Passed The new shot-windsteer.mjs, windsteerWidget, theme parameter, probe documentation, geometry changes, and related tests support issue #637 by exercising or documenting the new corner layout and its…
Title check ✅ Passed The title uses conventional-commit form with the feat(windsteer) prefix and an imperative subject. It accurately describes the main user-visible change: moving the current readout to the bottom-righ…
Full details: Linked Issues check

Explanation

Issue #637 requires the existing visibility rules to remain unchanged. The trigger is drift below the previous 0.1 m/s limit. The code path is WidgetWindComponent and widget-windsteer.component.html: the drift value is now rendered whenever data is fresh, while only setArrowActive uses hysteresis. The user-visible consequence is that the value and unit appear at zero or low drift where the previous whole readout was hidden. The relocation, corner placement, heading-up set-arrow rotation, and automated layout tests address the other stated requirements.

Resolution

Preserve the #637 visibility behavior for the drift readout, or update the directly linked issue to explicitly approve the changed low-drift behavior. Add or retain tests that cover the required enabled, fresh-data, compass-mode, and threshold gates.

Full details: Docstring Coverage

Explanation

Docstring coverage is 75.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 6 files. (3 skipped: 3 unsupported.)

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@mairas

mairas commented Sep 23, 2026

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Review fixes pushed (8f76a1da, a0e1c19c) for #640 (comment):

  • Finding 1 (svg-windsteer.component.spec.ts): the heading-change test asserts that animation frames are queued, that the arrow still points 90° before they run, and that the pivot is (816, 952) after. A snap or a dropped pivot now fails it.
  • Findings 4 and 5: the spec comment describes the current design; DIAL_CENTER and CORNER_BOUND are named next to DIAL_OUTER_RADIUS.
  • Finding 3 (perf-harness/README.md): a paragraph for shot-windsteer.mjs, and the control.selfMeta sentence names both probes that set it.
  • Testing gaps: set 030 at heading 300 gives 90°; set 010 with heading 350 → 030 animates the short way (checked mid-animation) and ends at 340°; the stale-drift spec pins that the arrow follows setFresh while the readout hides.
  • Mutation checks: dropping the pivot, snapping instead of animating, removing the negative wrap, removing the shortest-path wrap in animateRotation, and gating the arrow on driftFresh each fail at least one of the new assertions.
  • Finding 2 (arrow near a drift value of 10.0 or more) is left as is, by decision.
  • Finding 6 (true set against magnetic heading) is recorded on Windsteer: waypoint bearing is always true while the heading can be magnetic #634.

The windsteer spec has 43 cases; npm run lint and npm run snc are clean.

@mairas

mairas commented Sep 23, 2026

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Pushed three commits after device testing:

  • 6915166f fix(windsteer): show drift at any magnitude. The label, value and unit no longer depend on the 0.1 m/s threshold. On a test device the drift estimate dipped below it 6 times in 5 minutes, and each dip blanked the whole corner. The set arrow keeps a threshold, now with hysteresis: it shows at ≥ 0.1 m/s and hides below 0.05 m/s, checked on every raw sample.
  • 5af8dcb2 feat(windsteer): large set arrow behind drift. The arrow is 158 units long, pivots on the value's center at (904, 912), and sits behind the text at 40 % opacity; the text has a thin card-colour halo. The worst-case clearance over a full rotation is 7.5 units from the dial ring and 8 units from the tile edge, and a geometry spec checks it every 5°.
  • 4a4138d4 test(perf-harness): set drift and set in probe (--drift, --set-rel).

npm test passes (2201 tests), and lint and snc are clean. The PR description is updated to the final behavior.

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@perf-harness/shot-windsteer.mjs`:
- Around line 26-33: Update the `arg` helper in `shot-windsteer.mjs` to
distinguish an absent flag from a present flag with a missing value or a
following flag, and exit with an error for invalid input. Validate numeric
arguments with `Number.isFinite` before using them, including `port`, `driftKn`,
and `setRelDeg`, so invalid values cannot silently produce misleading
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Comment thread perf-harness/shot-windsteer.mjs Outdated
mairas and others added 7 commits September 23, 2026 21:15
The drift value, its unit and the set arrow sat at the dial center,
which the polar overlay needs. They now sit in the bottom-right corner,
laid out like the TWS readout top-right, in the drift blue. The set
arrow turns in place by set minus heading, so it stays heading-up
without riding the rotating dial, and sits clear of the dial and the
hard-over rudder arc. Visibility rules are unchanged.

The set arrow's first value is now placed without animation, like the
other indicators.

Refs #637

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Renders the Wind Steer widget from one fixed boat state (wind, heading,
COG, waypoint, hard-over rudder, 0.8 kn current) at a large and a
~220 px tile in the light, dark and night themes, for before/after
comparison of dial layout changes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Assert the animated set arrow keeps its corner pivot and actually
animates, and cover set below heading, a heading crossing north, and
the arrow staying visible when only the drift value is stale.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On a boat the whole current corner blinked off now and then: the
readout and the set arrow were both gated on a 0.1 m/s drift limit,
and the drift estimate hovers near it.

The drift label, value and unit now show whenever the drift is fresh,
at any magnitude including 0.0. Only the set arrow keeps a speed gate,
now with hysteresis: it shows from 0.1 m/s and hides only below
0.05 m/s. The gate is evaluated on every raw drift sample, since the
0.05 m/s change dedup on the displayed value equals the band width and
would hold a stale reading inside it.

Refs #637

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The corner set arrow was a small glyph beside the drift readout. It is
now as large as the corner allows and sits behind the drift value: its
pivot is the visual centre of the value's digits (904, 912), which is
also the corner point farthest from the dial edge and the viewBox
(87.5 units). The arrow reaches 80 units from it, so at every rotation
it keeps 7.5 units from the dial and rudder arcs and 8 from the
viewBox edge. A spec rotates it every 5 degrees and checks this.

The arrow is the drift blue at 40% fill opacity, and the drift label,
value and unit carry a thin card-coloured halo, so the value reads over
the arrow in the light, dark and night themes while the arrow still
reads as a direction at a small tile.

Refs #637

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Wind Steer probe streamed a fixed 0.8 kn current at 90 degrees
right of the bow. --drift (knots) and --set-rel (degrees from the bow)
now choose them, so the corner can be shot with the value over the
arrow at any angle, and with a near-zero drift that shows the value
without the arrow.

Refs #637

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@mairas
mairas force-pushed the feat/windsteer-current-corner branch from 4a4138d to 6946f50 Compare September 23, 2026 18:15
@mairas

mairas commented Sep 23, 2026

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Force-pushed 6946f50e: rebased onto current main, with CodeRabbit's probe-flag finding fixed in the probe-flags commit (see the thread reply). perf-harness/shot-windsteer.mjs now exits 2 on a missing or non-numeric --port, --drift or --set-rel value instead of streaming NaN and silently rendering no readout.

@mairas
mairas merged commit 184e3b2 into main Sep 23, 2026
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@mairas
mairas deleted the feat/windsteer-current-corner branch September 23, 2026 18:18
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Windsteer: move the current readout to the bottom-right corner

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